\begin{table}[htbp]\centering\footnotesize
\caption{Computational cost and provenance}\label{tab:cost}
\begin{tabular}{lll}\toprule
Component & Typical cost & Hardware / software\\\midrule
Model A (all figures) & $<1$ min & laptop, numpy/scipy\\
Model B (one equilibrium) & 4--30 s; 10 scenarios $\approx$ 5 min & numba kernels\\
Model C factorial (20 seeds) & $\approx$ 10 min & pure python\\
LLM lab (live) & $\approx$ 2--3 min per 8-agent $\times$ 24-period run & mlx\_lm.server, Apple M3 Ultra nodes\\
\midrule Git revision & \texttt{2c7f646} & Python 3.14.4, macOS-27.0-arm64-arm-64bit-Mach-O\\
\bottomrule\end{tabular}\end{table}